Application of agricultural waste in the treatment of industrial waste water
Keywords:
Rice husk, activated carbon, Mn2 , Fe3 , soft-drink industrial wastewater.Abstract
The treatment of waste water from soft drink, industry was investigated. Batch adsorption method was employed at various
doses of a carbonaceous adsorbent prepared from rice husk via sulphuric acid treatment to determine the effective
manganese and iron removal at different metal ion concentrations. Adsorption of Mn2+ and Fe3+ ions was strongly influenced
by adsorbent dose and contact time. The highest manganese and iron adsorption was achieved at adsorbent dose of 100g and
contact time of 80min. Also the highest percentage efficiencies of the adsorbent for Mn2+ and Fe3+ uptake at equilibrium
were 17% for mn2+ and 95.24% for Fe3+ . Isotherms for the adsorption of manganese and iron on RHAC were developed and
the equilibrium data for Fe3+ uptake fitted well to the Langmuir and Freundlich models
